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Multistrange baryon production in Au-Au collisions at root s(NN)=130 GeV

Adams, J; Adler, C; Aggarwal, MM; Ahammed, Z; Amonett, J; Anderson, BD; Arkhipkin, D; ... STAR Collaboration, .; + view all (2004) Multistrange baryon production in Au-Au collisions at root s(NN)=130 GeV. PHYS REV LETT , 92 (18) , Article 182301. 10.1103/PhysRevLett.92.182301. Green open access

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Abstract

The transverse mass spectra and midrapidity yields for Xis and Omegas are presented. For the 10% most central collisions, the (Xi) over bar (+)/h(-) ratio increases from the Super Proton Synchrotron to the Relativistic Heavy Ion Collider energies while the Xi(-)/h(-) stays approximately constant. A hydrodynamically inspired model fit to the Xi spectra, which assumes a thermalized source, seems to indicate that these multistrange particles experience a significant transverse flow effect, but are emitted when the system is hotter and the flow is smaller than values obtained from a combined fit to pi, K, p, and Lambdas.

Type: Article
Title: Multistrange baryon production in Au-Au collisions at root s(NN)=130 GeV
Open access status: An open access version is available from UCL Discovery
DOI: 10.1103/PhysRevLett.92.182301
Publisher version: http://dx.doi.org/10.1103/PhysRevLett.92.182301
Language: English
Additional information: © 2004 The American Physical Society
Keywords: STRANGENESS PRODUCTION, PARTICLE RATIOS, EQUILIBRATION, SPS
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
URI: https://discovery.ucl.ac.uk/id/eprint/1324889
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